js中继承关系

最新推荐文章于 2021-11-14 22:38:14 发布

sdfujichao

最新推荐文章于 2021-11-14 22:38:14 发布

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分类专栏： javascript

本文链接：https://blog.youkuaiyun.com/sdfujichao/article/details/84932471

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<!DOCTYPE html>
<html>

<body>
    <script>
        /**
         * yeye -> baba -> erzi -> sunzi
         */
        function Yeye() {
            this.yeye = "yeye"
        }
        var yeye = new Yeye();
        Baba.prototype = yeye;

        function Baba() {
            this.baba = "baba"
        }
        var baba = new Baba();
        Erzi.prototype = baba;

        function Erzi() {
            this.erzi = "erzi"
        }
        var erzi = new Erzi();
        Sunzi.prototype = erzi;

        function Sunzi() {

        }
        var sunzi = new Sunzi();
    </script>

</body>

</html>

子类通过__proto__来访问父类中信息